Recreate Multidimensional Array in PHP

Question

This is pretty basic, but my question is:

Given an array:

$a = array(
0 => array('Rate'=> array('type_id'=>1, 'name' => 'Rate_1', 'type'=>'day','value'=>10)),
1 => array('Rate'=> array('type_id'=>1, 'name' => 'Rate_2', 'type'=>'night','value'=>8)),
2 => array('Rate'=> array('type_id'=>2, 'name' => 'Rate_3', 'type'=>'day','value'=>7)),
3 => array('Rate'=> array('type_id'=>2, 'name' => 'Rate_4', 'type'=>'nigh','value'=>16)),
4 => array('Rate'=> array('type_id'=>3, 'name' => 'Rate_5', 'type'=>'day','value'=>10))
);

What is the most efficient way to change it so we have something like:

$new_array = array(
   [type_id] => array(
      [type] => array(
          [value]
          )
       )
    )
);

In other words, I would like to strip some data (the name, which I don't need) and reorganise the dimensions of the array. In the end I would have an array which I would be able to access the values by $new_array['type_id']['type']['value'].

Answer 1

Not entirely sure if this is exactly what you want, but with this you can access the values by saying

echo $new[TYPE_ID][DAY_OR_NIGHT];

$new = array();

foreach($a AS $b){
    $c = $b['Rate'];
    $new[$c['type_id']][$c['type']] = $c['value'];
}

Using print_r on $new would give you:

Array
(
    [1] => Array
        (
            [day] => 10
            [night] => 8
        )

    [2] => Array
        (
            [day] => 7
            [night] => 16
        )

    [3] => Array
        (
            [day] => 10
        )

)